41291609 has 2 divisors, whose sum is σ = 41291610. Its totient is φ = 41291608.

The previous prime is 41291603. The next prime is 41291687. The reversal of 41291609 is 90619214.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 24970009 + 16321600 = 4997^2 + 4040^2 .

It is a cyclic number.

It is not a de Polignac number, because 41291609 - 2²⁰ = 40243033 is a prime.

It is not a weakly prime, because it can be changed into another prime (41291603) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20645804 + 20645805.

It is an arithmetic number, because the mean of its divisors is an integer number (20645805).

Almost surely, 2^41291609 is an apocalyptic number.

It is an amenable number.

41291609 is a deficient number, since it is larger than the sum of its proper divisors (1).

41291609 is an equidigital number, since it uses as much as digits as its factorization.

41291609 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3888, while the sum is 32.

The square root of 41291609 is about 6425.8547291392. The cubic root of 41291609 is about 345.6372985409.

The spelling of 41291609 in words is "forty-one million, two hundred ninety-one thousand, six hundred nine".